Initial Profile Name

is an async PAD profile (see page 12-2) that will be in effect on this port until the user of the async device logs into the PAD, at which time the profile in the PAD Logins record (see page 12-7)becomes effective. (If N is selected in the Port record for Login Required, the profile in the Port record is always in effect.) If the specified profile is not defined in the database, the default profile, 90, will be in effect.

determines whether or not async PAD users will be required to log in before con- necting with this port. If Y, the user will be prompted to log in, and must enter a Login ID and Login Password (see page 12-7) or an Abbreviated Address (see page 12-17).

Parity

determines the type of parity checking that will be used on incoming data. Pressing [K] at the Port screen changes the value to the next one in the list:

0 = None 1 = Auto-detect 2 = Even 3 = Odd

The SmartSwitch 1800 supports 8 data bits with no parity checking, or 7 data bits with even or odd parity checking. They also support 7 data bits with auto-detect parity checking if X.3 Line Speed is set to Autobaud and PAD profile 21 is configured to check parity.

Make sure the data bits and parity settings will match throughout the connection.

DCE Cable Attached

identifies whether the port will act as a physical DCE (DCE Cable Attached = Y) or DTE (DCE Cable Attached = N).

Mask Link Alarms

prevents (if enabled) transmission to the collecting node of the link alarms 400-406 (Link Enabled, Link Disabled, etc.)

Generate M-bit Packets

is used by the PAD to turn on the M-bit in the X.25 data packet if more than one packet is required to transmit the data from the PAD.

Default Calling Address

will be inserted into an incoming X.29 Call Request if the packet does not contain a calling address. This parameter is relevant only if Disable X.121 User Calls is N.

Disable X.121 User Calls

will (if Y) cause the port to accept only those calls that substitute an abbreviated address (described later in this chapter) for the called address.

Autocall

causes (when enabled) the PAD to automatically call the remote device (Called Address) when the link comes up, either through rebooting the node or pressing [F7] after changing Autocall to Y.

Configuring Async Ports

12-11

1800 specifications

Cabletron Systems, a leading player in network management and telecommunications solutions during the late 20th century, introduced several innovative products that played a crucial role in shaping enterprise networking. Among these were the Cabletron FRX6000, FRX4000, and the FRX1800, which delivered advanced features aimed at enhancing network performance, security, and scalability.

The Cabletron FRX6000 was designed as a robust multi-layer switch, ideal for large-scale enterprise environments. It supported extensive routing capabilities, allowing organizations to manage traffic efficiently even under heavy loads. The FRX6000 boasted high throughput rates and low latency, making it suitable for demanding applications. With support for various network protocols, including IP, IPX, and AppleTalk, its adaptability made it a versatile choice for diverse networking needs. Moreover, security features like VLAN support and Access Control Lists (ACLs) provided enhanced protection against potential threats.

Moving to the FRX4000, this model offered a balance between performance and cost-effectiveness. The FRX4000 maintained many of the essential features of its larger counterpart while catering to medium-sized enterprises. It provided Layer 3 routing and could handle multiple simultaneous connections, ensuring seamless communication across departments. The modular design allowed for easy upgrades, enabling businesses to expand their network infrastructure without significant overhauls. This made the FRX4000 an attractive option for organizations looking to optimize their network investments.

Lastly, the FRX1800, designed for small to medium businesses, focused on simplicity and ease of use while still incorporating powerful network management capabilities. Its user-friendly interface made it accessible for organizations lacking extensive IT resources. The FRX1800 provided essential functionalities such as Integrated Layer 2 switching and routing, network monitoring, and basic security features, ensuring that even smaller companies could maintain efficient, reliable networking without overwhelming complexity.

All three models utilized advanced technologies, including a high bandwidth backbone and state-of-the-art switching architecture, to enable fast and reliable data transfer. They also supported Quality of Service (QoS) mechanisms, allowing businesses to prioritize critical applications and ensure consistent performance across the network.

In summary, the Cabletron FRX6000, FRX4000, and FRX1800 were pivotal in enhancing network capabilities, providing organizations with scalable, secure, and high-performance options tailored to their specific needs.

Cabletron Systems 1800 manual Initial Profile Name

Models: 1800